Just got the Spring United Mobile e-newsletter.
Outgoing SMS is now down to 0,39 € instead of 0,49 €.
They also added 16 countries:
"In the following 7 countries incoming calls are free:
Ghana
Japan (UMTS only)
Malaysia
Saudi Arabia
Tadzhikistan
Uganda
Uruguay
Favourable calling rates available now in:
Afghanistan
Armenia
Belize
Ecuador
Guatemala
Indonesia (Jakarta)
Iraq
Iran
Maldives"
They also intend to add Paypal auto-recharge (currently only available for credit cards).
A little competition is a good thing

Phones/Wireless Devices: Doogee S90, Isatphone Pro, Amazon Kindle 3G, SkyRoam MiFi device, Karma MiFi device, AT&T Liberate MiFi device
Sim Cards: T-Mobile (Mint), AT&T (Mifi device or Kindle), Koko
Satphone: InMarSat
Broadband US Wireless Data: AT&T postpaid, Sprint (Karma Mobility prepaid)
Broadband International Data: SkyRoam
VOIP: Skype